In the future these blank codes will be going away, but for now there are a few
hundred SubtitleLanguage's in our DB that have a language code of "".
Traditionally this meant "the original language of the video", so we'll just
make the name "Original" for now.
Done as part of Sentry Duty:
https://sentry.amara.org/amaraproduction/group/262/

This method receives a VideoUrl and tries to find
the TPA account related to that VideoUrl.
We need this because we have a ton of video urls
pointing to youtube full names (instead of the
unique usernames) and since full names are not
unique, there could be two TPAs and that can
make the code blow up.

Please don't hate me. :(
This is for debugging only and once we collect our data, we will remove this
stuff. The only thing that's different in this class is the fact that it logs
some request information to sentry.

Since our assigning task is already a hack,
we need another so when the user already has
max number of tasks for a team, we don't have error
when the user tries to resume a task.(cherry picked from commit aa55290)